Crusher and pulverizer



June 2-, 1931. H. J. 'sHL-:LTON 1 CRUSHER AND PULVERIZER FiledA March 26, 1927 2 Sheets-Sheet l -Jun 2, 1931.

H. J. SHELTON CRUSHER AND PULVERIZER Filed March 26, 1927' v2 sheets-'sheet 2 IN VEN TOR ATTORNEY Paten-ted June 2, `1931 I UNITED` STATES PATENT OFFICEv 'fj HARRY J. sHEL'r'oN, 0F sfr. Louis'iuissounr CRUsHnJs.y AND PnLvEnIzEn Application led March 2, 192,7. Serial No.. l78,660. Y Myjinvention relates to Crushersl and pulend lbe` comparatively close to they verizers and more particularly to crushers crushingelement while the `otherend ofthe and pulverizerszcomprising aVhous-ing havingplate was removed from the crushing element a pulverizmg chamber with a crushing elea substantial distance. f

5 ment mounted therein and also having an ad- The objects of my-inventiondare to pro-v 50 Y justable breaker plate mountedto form part: vide a simple and veEectivemeans to allow` of the wallvof the pulverizing chamber and adjustment of the breaker` plate with respect. to cooperate with the crushing element to reto the crushing element and yet' rigidly hold duce material fed into the machine. n theplate in a desired' adjusted positionfand Heretofore in Crushers and pulverizers of to provide in a machine of this typea single 55 this type there has been great diiculty in actuating means for simultaneously adjustmountingthe adjustable breaker plate, someing bothl ends of the breaker plate in relation times called the crushing head, so thatitimay to the crushing element. fbe quickly and easily'adjusted and yet be My invention is fullyshoawn in the accomrigidly maintained in a predetermined adpanying drawings wherein similarcharacters 60 justed position. l Y are used to designate similar parts; Fig. 1 V In this type of machine it is desirablel that is a sideview of a Crusher and pulverizer em-V the-breaker plate be capa-bleef adjustment bodyingmy invention; Fig.-2 isa sectional from-,outside of the machine and, therefore, view of the machine along the 'linesv2-2in the rods extending from each end of the Fig. S-ylfig. isafrontview of the machine. 65 Y breaker plate at the lower side thereof neces- Referring now to the figures the crusher sarily had to extend to a point outside of the and pulverized shown therein'v as embodying housing where they were engaged by side my.,invention in the attainment of the'obbars' which controlled the movement kin adjects set `forth above .has a housing which has a justment of the breaker plate.y Since `Avthe front wall l, aback wall 2 and side members 70 breaker plate was -usually pivoted at lits up-v 35- VThe housing has apulverizing chamber 4 per side, -whenthe lower end thereof was therein in which,iinthis form ofmy inven-k swung about the pivot as an axis the rods protion, is .mounted a crushing element consistjecting from the ends of the breaker plate ingV of hammers 5 loosely-mounted between necessarily moved in two directions, that is disks 6 fixed onto the shaft 7 which is rotat- 75 Y backwardly or'vforwardly and up -or down. ably mounted in thebearings 8 at each side To vallow this double movement ribs were exof the housing. vThe lower .circumferential tended rearwardly from thev back v of the wall of the pulverizing chamber is formed by breaker plate' and theseribs were provided a series of grate bars 9.z with Vsubstantially vertical slots which coop- At the back of thepulveriZing-chamber is 80 erated with substantialy horizontal slots in an adjustable breaker plate 1() which has on the housing to allow the double movement of its face detachable blocks llwhich'may be the rods. e However, such slots formed a replaced when they become worn by the imrather loose contact with the rod and alpact of material being reduced. Thebreaker ,49 lowed more 'or less vibration of the breaker plate isvpivotally mounted. at its upper end 85 plate.` n e f on the shaft 12 which extends betweenr the Further, in machines ofy this type as hereside members'B. At the lower end of. the tofore manufactured eachendof the breaker breaker plate kare formed lugs 13l in which is plate was adjusted independently ofthe other xed a rod 14 `whichis'lon enough to prol end and, therefore, thebreaker plate atone ject noutwardly from the en, s of the breaker 'Q9 Yit' plate and through slots in theside members 3. The outer end of the rod 14 at each side ofthe housing is engaged by the inner end of a bar 16 and, preferably, the outer ends of the rod 14 are threaded to receive a nut 17 which is used to hold the inner end of the barv16 in place. The inner end of the bar 16, as shown in Fig. 1, is preferably provided with an enlargement so that it will substantially cover the slots 15 to keep dust from passing from the space under the pulverizing chamber. The outer end ofeach of the bars 16, that is, the end opposite the end which is in engagement with the rod 14, passes through a lug 18 formed on the housing. Y

The end of the bar 16 outside the lug 18 may have a nut threaded thereonto controllthe longitudinal movement of the bar, as

hereinafter explained, but-I preferthat'it have a worm wheel 19 threaded thereon, for the purposes more fullyL outlined below.

Also, I prefer 'that the outer face ofthe lug' 18 be convex and that a washer 20 `having a concave face be positioned between the lug and the worm wheel 19 so that the inner end of the bar16willbe alloweda slight rocking movement. 'A `shaft 21 isfarrange'd trans versely of the bars 16 and is journaled in the projections 22. The shaft 21 has fixed'thereon worms 2'3 positionedto engage with" the worm wheels 19 on the `bars 16 whereby a retation of the shaft 21 will turn the worm wheels 19 and thereby cause a longitudinal movement of the bars 16.1 I prefer that a portion 24 of the shaft'21, positioned substantially centrally longitudinally thereof, be shape'dto receive awrenoh to facilitate rotation ofthe shaft to move the bars 1 6; Also, .this portion may have a hole 25therein to re# ceive a spike or crowbar which may be used to rotate the shaft. n f

` Vhen-it is desired to adjust the breaker plate 10.in relation to the crushing element, which in this embodiment lof my invention i consists of the hammers 5, the shaft 21 isrotated and, as outlined, above, this-rotation through the worms 2 3 and worm wheels 19 causes'th'e bars 16 to -begmoved either backwardly or forwardlyjas desired and as gov,-

erned by the rotation ofthe shaft ,'2'1.v It will be readily seen that'jwhen it is desired to bring the breaker plate closer tothe crushing element the bars 16 are moved forwardly and when it is desired toV move the breaker plate away from'the crushing,element the bars 16 aremovedbackwardly. The slots 15 in the sidemembers 3 are, preferably, arcuate in shape, as describedabove,`with the axis ment of the breaker pla-,teV lO'fand, therefore,

"as the breaker plate. ismoved backward `or wardly to bring the breaker plate 10 close to the crushing element the inner end of the bars will be moved slightly upwardly and, in turn, when the bars are moved rearwardly to move the breaker plate 10 away from the crushing element the inner ends of the bars will be moved slightly downwardly. As heretofore describedy this movement will be allowed by the convex surface of the lug 18 cooperating with the concave contacting surface of the washer 20. Of course, the shape of these membersmay be reversed, that is to say, the washer may have a convex surface A and the lug have a concave surface.

.1 It may be readily seen that since the side bars 16 are simultaneously moved by a single actuating means both ends of the breaker plate 10 will be uniformly moved and will be in the same "adjustment in relation to the crushing element'. i

It may be 'readilyv understood that I do not intend to limit myinvention to the exact de` tails of construction shown in the drawings since the-shape and arrangement' of the varlousparts may be changed 1n adapting my invention for use withcrus'hesand pulveriZers.

of dilferenttypes without ldeviating from the spirit of my invention asembodledin the claims below. i

What I Iclaim as new and 'desire to secure by Letters Patent, is: Y 'A 1. Acrusher andV pulverizer comprising a housing having a pulverizing ychamber with a lcrusl'iing elementl mounted therein, a breaker plate pivot'ally'mounted at one side thereof to form part ofthe wall of said pulverizing chamber, a rod-,extending outwardly from each end of said breaker plate vand fixed there# to,"'the side members of said housing having arcuate shaped slots therein through which said rod extends at each-end of said plate, the axis of said arcuate slots :being at the axis of the pivotal movement yof said plate whereby saidrod may be moved to adjust' the position of said plate in relation tosaid crushing element,'and bars engaging said rod outside of Y of said plate. Y

2.l A crusherand pulveriz'er comprising fa housing having a pulverizing chamber with a crushingelement mounted therein, a breaker plate pivotally mounted atits upperside to form vpart ofthe wall of said pulverizing chamber, a rod extending outwardly 'from each 'end' of said breaker plate'at the lower side thereof and fixed thereto, theside members of said housing having arcuate slots therein through which the ends of said rod extend,`bars engaging said rod at each end of saidvplate, the router'end of each of said bars passing through a lug on said housing, a worm 'wheel' threaded fon the outer end of each of said bars, a shaft arranged transverse- Aof the outer ends'of said bars, said shaft having worms thereon in engagement vwith the worm wheel on each of said bars whereby when said shaft is rotated said bars will be moved to bring said plate to desired adjusted position, washers positioned on said bars between said worm wheels and said lugs, and the contacting surfaces of said washers and said lugs being shaped and arranged to allow a rocking of the inner end of said bars.

In witness whereof I have signed my name Y to the foregoing specification.

A HARRY J. SHELTON. 

